Valley Pan Gasket and Water Pump

Helihover · #1 08-25-2014, 03:06 PM

My searching brought up nothing. Seems like many people redoing the valley pan on E39's are not removing the WP, but instead removing the accumulator. Will this procedure work on an E53?

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Helihover · #2 08-26-2014, 07:02 PM

Has anyone on here done their valley pan that would like to share a little insight on the matter?

garrett.fell · #3 08-26-2014, 07:05 PM

I did the valley pan on my N62 leaving the water pump in place. You just need a new pan and a new "shorty" pipe

You need to remove the intake, but once it's off the pan/pipe slips out easily from the water pump with it in place.

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Helihover · #4 08-26-2014, 07:13 PM

Thanks for the reply!

Unfortunately I have an M62 which I believe is different. I have to either remove the WP or the accumulator on the back of the engine. This will allow for the removal of two pipes for pan removal clearance. I also do not need a new pan, only sealant.

garrett.fell · #5 08-26-2014, 08:10 PM

On my N62 the pan had a seal bonded to it. It looked a lot like a cured bead of sealant. Not sure if the M62 is like that or not. In my case the seal was flattened out and had lost its bond to the pan in a couple of places and was leaking

I was doing a valve cover gaskets and front timing cover gaskets while I was doing the valley pan so all in all it was quite a bit of work

I think the pan wasn't very expensive at all - maybe just replace it considering how much of a pain in the ass it is to get to (on my car anyway)

Are these things considered re-sealable?

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Helihover · #6 08-26-2014, 08:15 PM

Yes. You can use the old pan on an M62. There is no gasket, only sealant used.

David.X5 · #7 08-26-2014, 11:28 PM

I've done this on my 2001 4.4i. Pretty much twice. Once when I pulled the engine and the second time when the crossover pipes were leaking.

I think you are better off removing the water pump and working from the front. It is technically possible to remove the cross over pipes after removing that rear distribution piece, but access stinks.

I recall the valley pan has a gasket integrated into the metal part. I replaced the entire thing. I recommend replacing the two crossover pipes while you are at it - they corrode around the orings - I tried a little sanding and polishing but had a slow leak there within a few months. Of course, mission creep is bad on this job. It would make sense to replace the water pump and thermostat housing while you are in there and the fan clutch and some hoses and ... And ...and ...

e30cabrio · #8 08-27-2014, 07:47 AM

Quote:

Originally Posted by David.X5

I've done this on my 2001 4.4i. Pretty much twice. Once when I pulled the engine and the second time when the crossover pipes were leaking.

I think you are better off removing the water pump and working from the front. It is technically possible to remove the cross over pipes after removing that rear distribution piece, but access stinks.

I recall the valley pan has a gasket integrated into the metal part. I replaced the entire thing. I recommend replacing the two crossover pipes while you are at it - they corrode around the orings - I tried a little sanding and polishing but had a slow leak there within a few months. Of course, mission creep is bad on this job. It would make sense to replace the water pump and thermostat housing while you are in there and the fan clutch and some hoses and ... And ...and ...

I hate while you are in there with an intensity equivalent to all the stars in the sky!

diyanich · #9 08-27-2014, 06:17 PM

Remove the accumulator manifold and replace the gaskets.
If you don't it, will be a real pain to do it once they start leaking.
I've done the Valley Pan gasket and rear manifold at the same time,VP was seeping,and manifold was losing a lot.
Once I replaced that I had a Water pump gasket failed,after replacing the WP along the gasket,I had transmission heat exchanger x–rings leaking.
Conclusion is that replace as many gasket as you can at once.Unless you like to repeat the same process endlessly.

e30cabrio · #10 08-27-2014, 06:25 PM

Quote:

Originally Posted by diyanich

Remove the accumulator manifold and replace the gaskets.
If you don't it, will be a real pain to do it once they start leaking.
I've done the Valley Pan gasket and rear manifold at the same time,VP was seeping,and manifold was losing a lot.
Once I replaced that I had a Water pump gasket failed,after replacing the WP along the gasket,I had transmission heat exchanger x–rings leaking.
Conclusion is that replace as many gasket as you can at once.Unless you like to repeat the same process endlessly.

I am not saying don't do it all, I am just saying doing it all adds up.

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